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THE NEW ZEALAND NATIONAL ELBOW ARTHROPLASTY REGISTER: A REPORT OF ITS FIRST FOUR YEARS

Department Of Orthopaedic Surgery, North Shore Hospital, Auckland,new Zealand

The aim of the New Zealand Elbow Arthroplasty Register is to evaluate the provision of elbow arthroplasty across the entire country by both recording accurate technical information and measuring the clinical outcomes of all elbow replacements performed in New Zealand. An initial form is completed at the time of surgery which includes details of the patient, surgical indications, the surgical procedure, the implant and the operating surgeon. Six months following surgery, all registered patients are asked to complete a questionnaire to measure the pain and function of the replaced elbow and to comment on any post operative complications. Data from 99 consecutive primary and 16 revision elbow arthroplasties was prospectively collected from January 2000 till December 2003. Rheumatoid arthritis was the commonest indication (63 cases) and the outcome was significantly better than for trauma and osteoarthritis. The Coonrad-Morrey was the most commonly used prosthesis (86 cases) followed by the Kudo (eight cases) and the Acclaim (five cases). 21 surgeons performed elbow arthroplasty during the study period but only five performed on average more than one case per year. Their results at six months were statistically superior to those provided by other surgeons. The number of complications reported by patients and the revision rate within the study period was low. An infection was seen in only two patients. The New Zealand Elbow Arthroplasty Register has become a robust method of assessment of the provision of elbow arthroplasty within the country. Our findings support the idea that elbow arthroplasty should not be performed by general orthopaedic surgeons on an occasional basis.

Correspondence should be addressed to The Secretary, British Elbow and Shoulder Society, The Royal College of Surgeons of England, 35–43 Lincoln’s Inn Fields, London WC2A 3PE.